On the same day his scouts informed him that the enemy had halted close under a height eight miles from the Roman camp. A party was sent to reconnoitre the height, and to see what kind of ascent a detour might afford: the report was that it was easy. Caesar ordered Titus Labienus, lieutenant-general and chief of the staff,1 to move in the third watch with two legions and the guides who knew the route, and to climb the topmost ridge of the height; and he showed him his own intention. He himself, starting in the fourth watch, marched speedily against the enemy by the same route which they had taken, sending forward the whole of the horse. Publius Considius, reputed a past master in the art of war, who had seen service in the army of Lucius Sulla and afterwards in that of Marcus Crassus, was sent forward with the scouts.